her funeral, attended by first lady michelle obama and hundreds of friends and classmates. >> we have to stop the violence. >> ward and williams have been charged with first-degree murder and two counts of battery with a firearm. >> kudos to chicago pd. you all did a great job and kept us, you know, involved and, you know -- thank you. >> reporter: and on friday, president obama plans to travel to chicago for a series of meetings on gun violence and a series of other issues. natalie? >> kevin tibbles in chicago. thanks so much, kevin. >>> in los angeles, an urgent manhunt for a cop killer is coming up empty. detectives work around the clock to try to track down leads. accused of killing three people, christopher dorner has a million dollar reward on his head. warnings have been posted along major roads in the area. >>> hackers broke into the emergency alert system in a local station and this is what unsuspecting viewers heard. >> authorities in your area have reported that the bodies of the dead are rising from their graves and attacking the living. follow the messages on screen that